Question

4.3х-3.5равно1.2х+1.9

Answer 1

4,3х-3,5=1,2х+1,9;
4,3х-1,2х=1,9+3,5;
3,1х=5,4;
х=5,4:3,1;
х=54:31;
х=1 23/31 (одна целая 23/31).